Machine-guard.



A. WEINS & J. H. P. J. ROESLER. I

MACHINE GUARD.

APPLICATION FILED NOV. 22. 1915.

Patented Nov. 7

ATTUFWC Y5 I SATES ARTHUR. WEINS AND JOSEPH H. 1. J. ROESLER, 0F MILWAUKEE, WISCONSIN.

MACHINE-GUARD.

Specification of Letters Patent.

Patented Nov. 7, ieie.

Application filed. November 22-, 1915. Serial No. 62,686.

To all whom it may concern:

Be it known that we, ARTHUR WEINS and JOSEPH H. P. J. ROESLER, citizens, of the United States, and residents of Milwaukee,

ing had to the. accompanying drawings,v

which are a part of this specification.

This invention relates to machine-guards.

The invention is designed more. particularly to provide a guard for the transmission mechanism of power-operated sewing machines.-

In the sewing-rooms of clothing establishments, the sewing machines are disposed upon opposite sides of a long table and spaced apart along the same and the machines are driven from separate shafts or a common line-shaft disposed below. and centrally ofv said table and transmission mechanism is provided for each machine including abelt. The treadle of the machine is disposed in front and to one side of the belt but serious accidents have happened owing to V the lack of any suitable protective covering for the belting and transmission mechanism.

It is the essential object of this invention to provide a protective casingfor the transmission mechanism which may be readily removed for the purpose of cleaning or permitting easy access to said mechanism.

A further object of this invention is to form an inclosing casing over t'he transmission mechanism which prevents oil splashing from occurring, which in connection with the manufacture of certain classes of g0ods,1s1n1portant to guard against as in the manufacture of white goodswhere a spot of oil upon them would spoil the piece.

The invention further consists in the several features hereinafter set forth and more particularly defined bv claims at the conclusion hereof.

In the drawings: Figure 1 is a sideview of the device showing it in position beneath the table, parts being shown in section; Fig. 2 is a'section taken on the line 22 of Fig. 1;

Fig. 3 is a section taken on the line 33 of Fig. 1; Fig. 4 is a detail section taken on-the line H of Fig. 1; and Fig; 5 is a detail section on the line 55 of'Fig. 1.

Before describing the device, a brief description of the machinery to which it is applied will. be given.

In the drawings the numeral 5 represents the long table upon opposite sides of which machines; 6 are disposed in spaced relation, the table being supported by uprights 7.

The numeral 8 indicates the line-shaft which generally runs the length of the table andrupon which drive pulleys 9 are mounted.

Variable. speed pulleys 10 are mounted upon ashaft 11 in bearing bracket 12 secured to the under side of the table beneath each machine and belting 13 connects the pulley'9 to the pulley 10 and belting 14 con- 1-4 disposed beneath the table. Each casing consists of a three sided movable shell or casing 16 and a fixed endplate 17 said shell and late forming a four sided casing, preferab y of sheet metal, for the purpose described.

' The shell 16 has sides 18 and 19 and an end 20, the top and bottom and opposite end being open. The height of the casing is substantially equal to the height of the table 5 above the floor 21 so that the casing may be slipped into place beneath the table and inclose a certain space including the transmission mechanism between the table and fioor. A portion of the side 18 of the ,shell is-cut down to form an open space 22 so as to permit of the shell being moved into place beneath the pulley without interfering with the arm 15, and the sides 18 and 19 have alined longitudinally extending slots 23 therein for slidably receiving the shaft 8. This slotmay be; made apredetermined distance above the floor to accommodate the line shaft, or it may be of sufficient width to secure it'in place to itsside by any suitablemay be reinforced by iron bands, such as the band 28 riveted to the bottom of the shell and the sides 18 and 19 are held spaced apart at the open end by a metal strap 29 secured to them.

The end plate 17 is fixedly secured to the table beneath the same and is provided with vertically extending grooves 30 for receiving the front edges of the sides 18 and 19. In the present instance, also, we secure a plate 31 to or make it integral with the plate 17 and provide its lower edge with a guideway 32 within which the upper edge 33 of the side 18 slidably fits so that when the shell 16 is slid beneath the table upon the guide 27 and the edge 33 within the guideway 32, said plate 31 will substantially cover said space 22 with the exception of that part through which the pulley shaft 11 and the control arm 15 extends. The side 18 is further provided with a slot 34' communicating with the space 22. The side 18 is also cut down as at 35 to accommodate the usual oil plate (not shown) disposed beneath the machine.

When the shell is slipped into place so that the sides 18 and 19 engage the end plate 17, all the belting beneath the machine together with a portion of the shaft 8 with its drive pulley will be inclosed. The end plate 17 does not extend the full length from the table to the floor but is spaced away from the floor to permit sweeping under it when the shell or movable casing is removed.

It will thus be seen that the casing protects the operator from the belting and prevents any splashing of oil, and that it may be readily removed for gaining access to the transmission mechanism or for cleaning beneath the machine by sliding the shell outwardly from beneath the table.

The invention is not to be restricted, unless necessary, to the details of construction herein set forth and it is therefore our intention to claim the same as broadly as will be permitted by the state of the art.

i/Vhat we claim as our invention is:

1. The combination, with a supporting table, a sewing machine mounted thereon, a line shaft beneath the table, and powertransmission mechanism operatively connecting said machine with said shaft, of a guard for said machine for inclosing its transmission mechanism beneath said table and a portion of said shaft including a casing slidably movable to a position beneath the table, and means for securing said casing in position.

2. The combination, with a power-operated sewing-machine-supporting table and a -transmission mechanism disposed therebeneath, of a guard comprising an end plate secured to the table, and a three sided shell slidably movable to a position beneath the table into engagement with said plate, said plate and shell forming an inclosing casing for said mechanism.

3. The combination, with a power-operated sewing-machine-supporting table and a transmission mechanism disposed therebeneath, of a guard comprising an end plate secured to said table and a. side plate extending at an angle thereto and provided with a guideway, a three sided shell having a cut out portion in one side, said shell being slidably movable upon the floor to a position beneath the table, the upper edge of the cut out side being slidably movable in the guideway on said side plate, said plates and shell forming an inclosing casing for said mechanism. 4:. The combination, with a power-operated sewing-machine-supporting table and transmission mechanism including a driveshaft disposed therebeneath, of a guard comprising an end plate secured to the table, a three sided shell having slots in its opposite sides for slidably receiving the drive shaft, and slotted plates adjustably secured to said sides adjacent said slots.

5. The combination, with a power-operated sewing-machine-supporting table and transmission mechanism including a driveshaft disposed therebeneath, of a guard comprising an end plate and a side plate extending at an angle thereto secured to said table, said end plate being provided with vertically disposed spaced apart grooves and said side plate having a guideway in its lower edge, a three sided shell having a portion cut out from one side and a slot for receiving said shaft, said shell being slidably movable upon the floor to a position beneath the table with edges of its opposite sides disposed in the grooves of said end plate and the upper edge of the cut out side being slidably movable in the guideway on side plate, said plates and shellforming an inclosing casing for said mechanism.

6. The combination, with a power-operated sewing-machine-supporting table and transmission mechanism including a drive shaft disposed therebeneath, of a guard including a three sided shell having slots in its opposite sides for slidably receiving the drive shaft, said shell inclosing the front and sides of said mechanism and a portion of said shaft.

7. The combination, with a supporting table, a sewing machine mounted thereon, a

line shaft beneath the table, and powertransmission mechanism operatively connecting said machine With said shaft, of a guard comprising a casing for completely inclosing that part of the power transmission mechanism disposed beneath said table and a portion of said shaft.

8. The combination, With a power-operated sewing-machine supporting table and transmission mechanism including a drive shaft disposed therebeneath, of a guard comprising an end plate secured to the table, and a three sided removable shell having slots in its opposite sides for slidably receiving the drive shaft, said plate and shell forming an inclosing casing for said mechanism.

9. The combination, with a power-operated sewing-machine supporting table and a transmission mechanism disposed therebeneath, of a tWo part casing for completely incasing said mechanism comprising a fixed casing member secured beneath the table and a removable casing member engaging said fixed casing member.

In testimony whereof, We aifix our signatures.

ARTHUR WEINS. JOSEPH H. P. J.' ROESLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

